#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "../ourhdr.h"

char buf1[] = "abcdefghij";
char buf2[] = "ABCDEFGHIJ";

int main(void)
{
    int fd;
    if((fd=creat("file.hole", FILE_MODE))<0)
    {
        err_sys("create error");
    }

    if(write(fd, buf1, 10)!= 10)
    {
        err_sys("buf1 write error");
    }

    if(lseek(fd,40,SEEK_SET)  == -1)
    {
        err_sys("lseek error");
    }

    if(write(fd, buf2, 10) !=10)
    {
        err_sys("buf2 write error");
    }
    exit(0);
}